一种滤波整流变压器的数学模型与工作机制  

Mathematical Model and Working Mechanism of a Kind of Filter Rectifier Transformer

作　　者：赵志宇[1] 罗隆福[1] 许加柱[1] 陈清玉[1] 张志文[1] 

机构地区：[1]湖南大学电气与信息工程学院,湖南省长沙市410082

出　　处：《电网技术》2012年第10期99-105,共7页Power System Technology

基　　金：国家自然科学基金项目(51077045;50907018;51077044)~~

摘　　要：为了研究滤波整流变压器的工作机理,文章首先针对滤波整流系统特有的主电路拓扑,构建了以阻抗特征为表达方式的等值电路解耦模型,以及反应变压器基本电压电流关系的数学模型。在此基础上,考察了谐波电流在绕组中的传递情况,揭示出谐波抑制的本质。同时从数学模型的角度分析了无功补偿的原理,确认了滤波整流变压器在功补方面的独特优势,仿真和实测结果表明了理论分析的正确性。To research working principle of filter rectifier transformer,firstly based on the topology of main circuit that is peculiar to filter rectifier system an equivalent circuit decomposition model,which takes the impedance characteristics for the expression,and a mathematical model reflecting basic relation between votlage and current of the transformer are constructed.On this basis,considering the transferring of harmonic currents in transformer windings the essence of harmonic suppression is revealed,meanwhile,from the viewpoint of mathematical model the principle of reactive power compensation is analyzed to conform the distinctive superiority of filter rectifier transformer in ractive power compensation.Both results from simulation and measurements prove the coreectness of conclusion from theoretical analysis.

关 键 词：整流系统 数学模型 滤波 无功补偿 

分 类 号：TM41[电气工程—电器]